Boat propulsion.



Patented Sept. 25, I900.

'3 Sheets-Sheet l.

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H. H. FEFEL. BOAT PROPULSION. (Application filed May 31, 1899. Benuwedfeb. 18, 1900.)

(N0 Medal.)

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ATENT OFFICE.

HENRY H. FEFEL', OF NEW YORK, N. Y., ASSIGNOR TO THE MULTIPLE POWER COMPANY, OF WEST VIRGINIA.

BOAT PROPULSION.

SPECIFICATION forming part of Letters Patent No. 658,629, dated September 25, 1900. Application, filed May 31. 1899. Renewed February 16, 1900. Serial No. 5,543. (No model.)

To all whom it may concern:

Be it known that I, HENRY H. FEFEL, a citizen of the United States, residing at New York, borough of Manhattan, State of New York, have invented certain new and useful Improvements in Boat Propulsion, of which the following is a full,clear, and exact description.

This invention relates to propelling mechanism for steam-launches, yachts, and other marine vessels.

The invention consists, essentially, in means for imparting multiplying rotary motion from a main driving-shaft to a driven shaft arranged in line with the driving-shaft, the means embracing the combination of a driveshaft, a double-cranked driven shaft in line with the drive-shaft, a multiplying trammeldisk connected with the drive-shaft, and a plurality of double cranked intermediate shafts coupled with thedisk and with the double-cranked driven shaft.

In the drawings forminga part of this specification, Figure l is a plan showing the outline of a boat or vessel with my improvement applied thereto. Fig. 2 is an enlarged plan of the connections for multiplying rotative motion of the driven shaft from the drivingshaft. Fig. 3 is a side elevation of the same.

Fig. 4 is a section on the line so as of Fig. 2.'

Fig. 5 is a section on the line y y of Fig. 2. Fig. 6 is a section on the line ,2 z of Fig. 2.

1 is a driving-shaft rotated or driven by any suitable motor and in any suitable manner.

2 is a trammel disk or wheel keyed or secured to the driving-shaft, the disk being preferably provided with eight radial grooves, three for increasing or multiplying the speed of a plurality of crank-shafts 4 4. The shafts 4 4 are firmly secured in bearings 5 5, and each carries at one extremity a cross-head or double crank-arm 6, the arms carrying the crank-pins 7 7 being provided with tapering antifriction-rollers 8 8 to fit in the grooves 3 in the trammel-disks. Through the medium of these grooves, cranks, and crank-pins the shafts 4 4 are given a rotative motion much more rapid than that of the driving-shaft,

the rate of motion being determined by the number of radiating grooves.

9 is a driven shaft, in this instance a propellershaft. The driven shaft is firmly mounted in heavy bearings 10 10 and is prospective shafts are coupled together by means of links or connections 13 13. The driven shaft 9, arranged in the same axial plane with the driving-shaft, is thus driven at a relatively-high rate of speed in a noiseless man-' ner and with a minimum of friction.

In order .to secure the greatest efficiency for the main part of my invention, I mount the driving and the driven shafts and the intermediate shafts upon a heavy bed-plate 14, so that the support for the shafts and gearing may be rigid and firm. For convenience in assembling the parts and bringing the shaft 9 into proper alinement with the shaft 1 and of bringing the crank-pins 7 and their sleeves or rollers 8 into proper alinement or register with the grooves 3 I interpose between the main bed-plate 14 and the gearing a longitudinally-adjustable plate 15 and a laterallyadjustable plate 16, carrying the bolsters or brackets upon which the shaft-bearings 5 and 10 are mounted. The plate 15 is adapted to be adjusted longitudinally through the medium of set screws orbolts 17, and the plate 16, carrying the bolsters and shaft-bearings, is laterally adjustable through the medium of set screws or bolts 18, the respective plates being slotted, as shown, so as to permit of a limited free movement in line with the slots. It should be noted that the grooves 3 in the trammel-disk are slightly flaring and that the rollers 8 are correspondingly tapered, so as to fit with substantial accuracy in the grooves. As the rollers become worn they may be set up to compensate for the wear through the medium of the movable plate 15. The main bed-plate 14 is provided with a transverse trough 19 for the reception of oil or any proper lubricant and in which one edge of the trammel-disk is always placed.

In Fig. 4 I have shown in dotted lines how the entire multiplyingmechanism may be inclosed by a casing, and when so inclosed all of the parts of the gearing may be submerged in oil, if desired.

Having described my invention, What I claim as'new, and desire to secure by Letters Patent, is-

1. The combination of a drive-shaft, a double-cranked driven shaft arranged in line with the drive-shaft, a multiplying trammel-disk connected with the drive-shaft, and a plurality of double-cranked intermediate shafts coupled with the disk and with the doublecranked driven shaft, substantially as described.

2. The combination of a drive-shaft, a dou- HENRY H. FEFEL.

Witnesses:

FRANK S. OBER, GEO. S. KENNEDY. 

